My Meta Moments
summary
Metaprogramming is presented as learnable and fun and the concrete result is a working Putter gem that instruments code to log call site file/line, arguments and return values. It actually uses method_missing, define_method, `send`, `prepend`, singleton classes, `BasicObject` and `instance_exec` to wrap instances and override `new` so every created object can be followed. The demo prints real outputs, warns about cache invalidation, slower paths and harder tests, and shows the gem functioning on class and instance methods.
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chapters (7)
- 0:00Start
- 11:37INHERITANCE
- 13:12ANCESTORS
- 15:31METHOD DISPATCH
- 24:11SINGLETON CLASSES
- 27:00instance eval
- 29:19PUTTER
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